There is something I find endlessly fascinating about places that sit side by side yet tell completely different stories in their buildings. Wooburn Green gathers around its triangular village green — roughly an acre and a half of open space fringed with trees, enclosed by cottages and historic inns — the Red Cow, dating from 1570, and the Bull Inn among them — that stand witness to centuries of settlement around the Bishop of Lincoln's manor. Walk a mile uphill to the west and you reach Flackwell Heath, a settlement that barely existed before the twentieth century, built across land that was once covered in cherry orchards. One place is layered with centuries of adaptation and repair; the other is almost entirely a product of the last hundred years. As an architect, that contrast is not a problem to solve — it is a gift. It means the work we do in each place is genuinely different, shaped by entirely different building traditions, planning contexts, and opportunities.
Award-winning Architects in Flackwell Heath/Wooburn Green
Why Clients Across the Chilterns Trust Gresford Architects
I founded Gresford Architects in London in 2006, and we now work with clients across the country from our studio in Oxford. I am an ARB registered, RIBA Chartered architect with a deep commitment to sustainability and heritage — two disciplines that might seem opposed but which, in practice, are inseparable. My membership of the Passivhaus Trust and accreditation with The Green Register reflect our expertise in energy performance and environmental design, while my membership of the Society for the Protection of Ancient Buildings keeps us rooted in the careful, patient work that older buildings require. We have restored a Grade II listed barn in Buckinghamshire — The Great Barn — where reading the existing structure was the essential first step, and we designed The Deerings in Hertfordshire, a Passivhaus home that won the RIBA East Award in 2018. I trained at the Mackintosh School of Architecture in Glasgow and qualified in 2002. Our work has been published in Dezeen, The Modern House Journal, and Grand Designs Magazine, and in 2025 I was invited to judge the British Homes Awards. That breadth of experience — from medieval timber frames to airtight Passivhaus envelopes — is what allows us to work confidently in a place like this, where the architectural demands change from one street to the next.
Architectural Services for Two Distinct Communities
Renovations are the starting point for much of our work around Wooburn Green, where the conservation area centres on the village green with its seventeenth-century inns and a church whose origins reach back to the late twelfth century. The buildings grouped around the green — flint and brick cottages, timber-framed inns, the remnants of a settlement that the Domesday Book recorded in 1086 — demand an approach grounded in understanding how old buildings breathe, move, and hold themselves together. My wife Phoebe is a conservation architect, and her influence has deepened my respect for heritage fabric in ways that go beyond regulation. When we work on a building from the seventeenth or eighteenth century, we begin by reading it — understanding its materials, its moisture dynamics, its structural logic — before proposing anything new. That forensic patience is what distinguishes sensitive renovation from well-meaning damage.
Extension Design is where the greatest volume of opportunity lies in Flackwell Heath. The postwar houses that line its streets were built to generous proportions by the standards of their time, but the rooms often no longer match how families live — kitchens that face away from the garden, ground floors divided into a series of disconnected boxes, bathrooms squeezed into the spaces that were left over. The best extensions do not simply bolt on more square footage; they rethink how the whole house works, opening up the relationship between inside and outside, drawing light deeper into the plan, and making the home feel connected rather than subdivided.
EnerPHit is the standard we recommend for homeowners in Flackwell Heath and Wooburn Green who want to dramatically improve the energy performance of an existing home. The postwar houses in Flackwell Heath, built with cavity walls and single glazing, and the older solid-walled buildings around Wooburn Green both lose heat at rates that would astonish their owners if measured. EnerPHit addresses this through carefully designed insulation, improved airtightness, and mechanical ventilation with heat recovery — transforming a draughty house into one that is warm, quiet, and costs a fraction of its former energy bills to run. The approach differs depending on the building: in Wooburn Green's conservation area, insulation must respect the moisture behaviour of historic masonry, while in Flackwell Heath the scope for external wall insulation is often far greater.
Sustainable Design runs through everything we do, and it takes different forms in each of these two places. In Wooburn Green, where the conservation area and the Chilterns National Landscape designation require buildings to sit quietly within their setting, retrofitting historic cottages with performance in mind demands restraint — insulation that works with the moisture behaviour of old brick and flint, improved windows that respect the character of the streetscape. In Flackwell Heath, where much of the housing predates any consideration of energy efficiency, the scope is wider and the opportunity to transform a postwar house into something genuinely low-carbon is enormous. In both cases, we design with a fabric-first philosophy — getting the walls, roof, floor, and windows right before introducing any technology — because a building that works passively will always outperform one that relies on systems alone. It is what makes a home more comfortable to inhabit, more economical to run, and more joyful to live in.
PassivHaus Design takes this further still — a standard that makes most sense on the rural sites beyond these two villages, where new building in the Chilterns landscape can set the highest ambitions from the outset. A Passivhaus achieves consistent warmth with virtually no conventional heating through meticulous insulation, airtight construction, and heat recovery ventilation. The Deerings, our RIBA award-winning home in Hertfordshire, is the proof that this standard delivers not just performance on paper but a home that feels genuinely different to live in — quiet, warm, and effortless.
For sites in the countryside beyond these settlements, New Build Design and Paragraph 84 of the National Planning Policy Framework offer a route to something exceptional. Paragraph 84 permits new homes in the open countryside where the design is of outstanding quality and enhances its immediate setting. The Chilterns landscape — chalk hills, beech woods, the gentle valley of the River Wye — asks for architecture that responds to the land with care and conviction, and that is precisely the kind of design challenge we relish.
Whether you are restoring a cottage on Wooburn Green, extending a family home in Flackwell Heath, or considering something entirely new in the Chilterns countryside, we would welcome the chance to talk. The best projects begin with a conversation about the building, the place, and the life you want to live in it.